直驱永磁风力发电机高温短路去磁分析

No-Load Short-Circuit Analysis of Direct-drive Wind Turbine Permanent Magnet Generator with High Temperature

利用Maxwell电磁场软件的二维瞬态分析功能,对兆瓦级直驱永磁风力发电机进行了空载时各种突然短路仿真.在最大短路电流时刻对永磁体的去磁程度进行分析,为永磁电机设计永磁体去磁工作的研究提供了理论依据.

By using the function of Maxwell two-dimensional transient electromagnetism, the no-load and load performances of PMSM with some sudden short-circuit are simulated. In the moment of maximum short-circuit current of permanent magnet, demagnetization degree is analyzed, Which provides a theoretical basis for the demagnetization of PMSM.